66921WASHER

Fits models / variants:

V-150 V-175 V-135 V-200 XR-4 / MAGNUM II V-200 (2.5L) 1991 ONLY V-140 (INTERNATIONAL)

Mercury outboard spare part 66921 (WASHER). Supplied by Dimo Marine for wholesale and export — genuine and quality aftermarket options available.

Fits V-150, V-175, V-135, V-200, XR-4 / MAGNUM II, V-200 (2.5L) 1991 ONLY, V-140 (INTERNATIONAL). Select a model tag above to open the exploded diagram and confirm the position.

Part Specifications and Installation Reference

Mercury outboard part 66921 (WASHER), documented in 50 exploded diagram location(s), across the 2-STROKE-CARB, 2-STROKE-DFI-OPTIMAX, 2-STROKE-EFI series.

Series	Model	Serial range	REF	Qty	Diagram
Mercury 2-STROKE-CARB	110-jet-2-5l	1B690542 THRU 1B974227	24	2	View
Mercury 2-STROKE-CARB	125-4-cyl	0D283222 THRU 0G760299	24	2	View
Mercury 2-STROKE-CARB	125-4-cyl	0G760300 THRU 0T979999	24	2	View
Mercury 2-STROKE-CARB	125-4-cyl	0P017000 THRU 0P325499	24	2	View
Mercury 2-STROKE-CARB	125-4-cyl	0P325500 THRU 0P340986	24	2	View
Mercury 2-STROKE-CARB	125-4-cyl	0T980000 THRU 1B214144	24	2	View
Mercury 2-STROKE-CARB	125-4-cyl	1B000001 THRU 1B358950	24	2	View
Mercury 2-STROKE-CARB	125-4-cyl	9793577 THRU 0P016999	24	2	View
Mercury 2-STROKE-CARB	250-275	0C101891 THRU 0D224591	28	2	View
Mercury 2-STROKE-CARB	v-140-international	0T178500 THRU 1B226999	11	2	View
Mercury 2-STROKE-CARB	v-150	0C100861 THRU 0C239552	11	2	View
Mercury 2-STROKE-CARB	v-150	0C239553 THRU 0D081999	11	2	View
Mercury 2-STROKE-CARB	v-150	0D082000 THRU 0G303045	11	2	View
Mercury 2-STROKE-CARB	v-150	0G303046 THRU 0G760299	11	2	View
Mercury 2-STROKE-CARB	v-150	0G760300 THRU 0G960499	11	2	View
Mercury 2-STROKE-CARB	v-150	0G960500 THRU 1B226999	11	2	View
Mercury 2-STROKE-CARB	v-150	4868998 THRU 0A904645	11	2	View
Mercury 2-STROKE-CARB	v-150-magnum	5600162 THRU 0A904645	28, 36	2	View
Mercury 2-STROKE-CARB	v-150-marathon	5600162 THRU 0A904645	28, 36	2	View
Mercury 2-STROKE-CARB	v-150-work	4868998 THRU 0A904645	28, 36	2	View
Mercury 2-STROKE-CARB	v-150-xr-2	4868998 THRU 0A904645	28, 36	2	View
Mercury 2-STROKE-CARB	v-1500	4868998 THRU 0A904645	28, 36	2	View
Mercury 2-STROKE-CARB	v-175	0C100861 THRU 0C239552	11	2	View
Mercury 2-STROKE-CARB	v-200	0C100861 THRU 0C291519	11	2	View
Mercury 2-STROKE-CARB	xr-4-magnum-ii	0B242885 THRU 0C100860	11	2	View
Mercury 2-STROKE-DFI-OPTIMAX	135-hp-v6-cyl-2-5l	0G760300 THRU 0G960499	24	2	View
Mercury 2-STROKE-DFI-OPTIMAX	135-hp-v6-cyl-2-5l	0G960500 THRU 0T178499	24	2	View
Mercury 2-STROKE-DFI-OPTIMAX	135-hp-v6-cyl-2-5l	0T178500 THRU 0T800999	24	2	View
Mercury 2-STROKE-DFI-OPTIMAX	135-hp-v6-cyl-2-5l	0T801000 THRU 1B226999	24	2	View
Mercury 2-STROKE-DFI-OPTIMAX	135-hp-v6-cyl-2-5l	1B227000 THRU 1B417701	24	2	View
Mercury 2-STROKE-DFI-OPTIMAX	135-hp-v6-cyl-2-5l	1B417702 THRU 1B737495	24	2	View
Mercury 2-STROKE-DFI-OPTIMAX	175-hp-pro-xs-6-cyl-2-5l	1B516339 THRU 2B535624	24	2	View
Mercury 2-STROKE-DFI-OPTIMAX	175-hp-v6-cyl-2-5l	0T178500 THRU 0T800999	24	2	View
Mercury 2-STROKE-DFI-OPTIMAX	175-hp-v6-cyl-2-5l	0T801000 THRU 1B226999	24	2	View
Mercury 2-STROKE-DFI-OPTIMAX	175-hp-v6-cyl-2-5l	1B227000 THRU 1B417701	24	2	View
Mercury 2-STROKE-DFI-OPTIMAX	175-hp-v6-cyl-2-5l	1B417702 THRU 1B508457	24	2	View
Mercury 2-STROKE-DFI-OPTIMAX	250-hp-pro-xs-6-cyl-3-0l	1B752547 THRU 2B535608	24	2	View
Mercury 2-STROKE-EFI	200-3-0l	0T750164 THRU 0T800999	11	2	View
Mercury 2-STROKE-EFI	v-175-efi-2-5l	0T409000 THRU 0T800999	11	2	View
Mercury 2-STROKE-EFI	v-175-hp	0G303046 THRU 0G760299	11	2	View
Mercury 2-STROKE-EFI	v-175-hp	0G760300 THRU 0G960499	11	2	View
Mercury 2-STROKE-EFI	v-175-hp	0G960500 THRU 0T408999	11	2	View
Mercury 2-STROKE-EFI	v-175-magnum	0D000750 THRU 0D081999	11	2	View
Mercury 2-STROKE-EFI	v-200	0G303046 THRU 0G760299	24	2	View
Mercury 2-STROKE-EFI	v-200	0G760300 THRU 0G960499	24	2	View
Mercury 2-STROKE-EFI	v-200	0G960500 THRU 0T408999	24	2	View
Mercury 2-STROKE-EFI	v-200-2-5l	0T409000 THRU 0T800999	11	2	View
Mercury 2-STROKE-EFI	v-200-2-5l	0T801000 THRU 1B226999	24	2	View
Mercury 2-STROKE-EFI	v-200-2-5l	1B227000 THRU 2B121048	24	2	View
Mercury 2-STROKE-EFI	v-220-laser	1B516994 THRU 2B091896	11	2	View

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Appears in diagrams of these models

V-150
V-175
V-135
V-200
XR-4 / MAGNUM II
V-200 (2.5L) 1991 ONLY
V-140 (INTERNATIONAL)